The Greek former construction worker tells Mr Cencich: "In 1945 I was building a secret construction inside the monastery in Samos."

New evidence: John Cencich believes Hitler faked his own death

"I had to build secret tunnels and compartments for Germans," he continued. "Yes, the Germans were Nazis and one of these guys was Adolf Hitler.

"He was right there, he wasn't wearing a moustache or anything. this was May 1945. I realised it was really Hitler because of the airplane.

"I went to work in another town. The first thing I saw in this town was a German airplane. It had landed in an old potato field. the farmer told me there were five people who landed, they were German."

New information: The FBI report on Hitler's flight to South America from the Canaries

Mr Cencich said: "The accepted truth that he committed suicide is ambiguous."

When the war came to an end many Nazis made an exodus to South America to begin a new life away from Europe.

It is claimed Hitler traveled by U-Boat to Argentina from the Canary Islands to be reunited with his comrades.